MATLAB: Need help graphing this

graph a cosine

How do you graph y = cosx and y = 5 + cosx over the interval [0,4pi]?

I also want to use the command "ylim([-2,7]) in order to view the graph clearly.

I just installed Matlab and it is my first time using this software. Thanks

x = 0:0.01:4*pi;
plot(x,cos(x));hold on;
plot(x,5+cos(x));
ylim([-2 7])

%Example

x=0:0.1:10;
y1=sin(x);
y2=cos(x)
plot(x,y1,'r',x,y2,'g');
legend({'curv1','curv2'})

Look at

doc plot

In order to place mutliple plot on same figure we can use hold on functionality

As a example

x = linspace(-pi,pi);
y1 = sin(x);
y2 = cos(x);
plot(x,y1); % first line
hold on 
plot(x,y2); % second line
hold off